Take a look at the Joe Rocket Phoenix 5.0 jacket. I just got one of those and it is perfect for riding up here in Columbus, MS. It's extremely well ventilated and you can get it in a hi-vis option. None of my actual clothing is reflective, but I do wear a very reflective construction vest every time I ride (Air Force also requires it, but I wear it while leisure riding as well). I have noticed a difference in how people react around me while wearing it, most notably around intersections. A lot of hardened riders will scoff at the bright yellow gear, saying it does nothing and that if someone's gonna hit you, they're gonna hit you. For me, if it even saves my butt one time that I don't know about, it's worth the $10 I paid and 10 seconds it takes to put on.
2012 Kawasaki Versys 650 - 20,500 miles
2000 Volvo V70XC 2.4T - 258,000 miles